Home / 30,560.63-42,173.76-16,949.64

Finding the Fourth Proportional to 30,560.63, 42,173.76 and 16,949.64

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Solution

The fourth proportional to 30,560.63, 42,173.76 and 16,949.64 is: 23,390.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,560.63 : 42,173.76 = 16,949.64 : x
  2. Step 2: Convert to fraction form
    30,560.63/42,173.76 = 16,949.64/x
  3. Step 3: Cross multiply
    30,560.63x = 42,173.76 × 16,949.64
  4. Step 4: Simplify right side
    30,560.63x = 714,830,049.45
  5. Step 5: Solve for x
    x = 714,830,049.45/30,560.63
  6. Step 6: Final answer
    x = 23,390.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.